/*-------------------------------------------------------------------------
 *
 * tablespace.h
 *        Tablespace management commands (create/drop tablespace).
 *
 *
 * Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/commands/tablespace.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef TABLESPACE_H
#define TABLESPACE_H

#include "access/xlogreader.h"
#include "catalog/objectaddress.h"
#include "lib/stringinfo.h"
#include "nodes/parsenodes.h"

/* XLOG stuff */
#define XLOG_TBLSPC_CREATE        0x00
#define XLOG_TBLSPC_DROP        0x10

typedef struct xl_tblspc_create_rec
{
    Oid            ts_id;
    char        ts_path[FLEXIBLE_ARRAY_MEMBER]; /* null-terminated string */
} xl_tblspc_create_rec;

typedef struct xl_tblspc_drop_rec
{
    Oid            ts_id;
} xl_tblspc_drop_rec;

typedef struct TableSpaceOpts
{
    int32        vl_len_;        /* varlena header (do not touch directly!) */
    float8        random_page_cost;
    float8        seq_page_cost;
    int            effective_io_concurrency;
} TableSpaceOpts;

extern Oid    CreateTableSpace(CreateTableSpaceStmt *stmt);
extern void DropTableSpace(DropTableSpaceStmt *stmt);
extern ObjectAddress RenameTableSpace(const char *oldname, const char *newname);
extern Oid    AlterTableSpaceOptions(AlterTableSpaceOptionsStmt *stmt);

extern void TablespaceCreateDbspace(Oid spcNode, Oid dbNode, bool isRedo);

extern Oid    GetDefaultTablespace(char relpersistence);

extern void PrepareTempTablespaces(void);

extern Oid    get_tablespace_oid(const char *tablespacename, bool missing_ok);
extern char *get_tablespace_name(Oid spc_oid);

extern bool directory_is_empty(const char *path);
extern void remove_tablespace_symlink(const char *linkloc);

extern void tblspc_redo(XLogReaderState *rptr);
extern void tblspc_desc(StringInfo buf, XLogReaderState *rptr);
extern const char *tblspc_identify(uint8 info);

#endif                            /* TABLESPACE_H */
